baber/WOPTO huggingface dataset:
Patent CA-2010971-A1 (CA)
Inventor: GUERRA GAETANO
IPC: C08F112/08
Filed: 1990-02-27
Abstract: ARTICLES OF A NEW CRYSTALLINE FORM OF SYNDIOTACTIC          STYRENE POLYMER                       ABSTRACT  Articles in syndiotactic styrene polymer where the polymer is present  predominantly  in  a  new  crystalline  form characterized by an X-ray spectrum which presents reflections of maximum intensity at 2 ? of 12.2° and 20.0°, where in the 2 ? range  from 15° to 18° no reflections  of appreciable intensity appear.
Patent CA-2011009-A1 (CA)
Inventor: DAVEY KENNETH J
IPC: G05D16/06
Filed: 1990-02-27
Abstract: The line pressure regulator (11) comprises a substantially tubular housing (12) having an inlet (13) provided in its side wall at an intermidiate location thereof and an outlet port (17) provided at one end of the tubular body (12). The housing (12) incorporates two auxiliary ports (15), (16) and one outlet port (17). A compression spring (28) biases a spindle like support element (20) that is axially slidable through the ports (15) and (16) and carries a set of three valve members (21), (22) and (23) which are associated with the first, second and third port. The valves (21) and (22) are dimensioned such that they are slidably receivable through the respective auxiliary ports (15) and (16) with a very close tolerance therebetween.
Patent CA-2015111-A1 (CA)
Title: New binary dispensor for the application of fluids, semi-fluids or semi-solids
Inventor: WOO TOM Y
IPC: A61K9/06
Filed: 1990-04-23
Abstract: ABSTRACT:   A unique "binary dispenser" for housing and applying various substances to various surfaces is proposed.  This device is used as a means for the application of various substances (such as, but not limited to, liquids, semi-liquids, semi-solids, gels, ointments, lotions, creams, suspensions, solutions) to various surfaces (such as, but not limited to, biologic surfaces such as hair, skin or nails or to any non-biologic surface such as any nonbiologic surface). Currently, most if not all, substances (biologic and non-biologic agents)  are applied via a container (such as a tube, bottle or dispensor) which has a single chamber which houses the substance. This device involves the use of an object, such as but not limited to, a container, tube, dispensor, bottle, or other such device which has two or more separate chambers, each containing a separate different substance.
Patent CA-2015931-A1 (CA)
Title: Nylon staple fiber
Inventor: THOMPSON ALFRED H JR
IPC: D02J1/22
Filed: 1990-05-02
Abstract: ABSTRACT Nylon staple fiber (and precursor continuous filaments in the form of a tow) of high load-bearing capacity is prepared by an improved process of first drawing the tow between multiple feed and draw rolls, followed by both heating and cooling the draw filaments to anneal them under a controlled tension.
Patent CA-2016428-A1 (CA)
Inventor: HOBERMAN CHARLES
IPC: E04B7/16
Filed: 1990-05-09
Abstract: A loop-assembly is disclosed which is comprised of at least three scissors-pairs, at least two of the pairs comprising: two essentially identical rigid angulated strut elements, each having a central and two terminal pivot points which do not lie in a straight line, each strut being pivotally joined to the other of its pair by their central pivot points. each pair being pivotally joined by two terminal pivot points to two terminal pivot points of another pair such that both scissors-pairs lie essentially in the same plane, or each pair being pivotally joined by two terminal pivot points to two terminal pivot points of another pair in that the terminal points of a scissors-pair are each pivotally joined to a hub element, and these hub elements are in turn joined to the terminal pivot points of another scissors-pair, whereby a closed loop-assembly is thus formed of scissors-pairs, and this loop-assembly can fold and unfold, and a line that intersects and is perpendicular to the axes of any two terminal pivot points is non-parallel with at least two other similarly formed lines in the assembly, the angles formed between said lines remaining constant as the loop-assembly is folded and unfolded.
Patent CA-2016938-A1 (CA)
Inventor: PATERRA JEFFREY H
IPC: B41J32/02
Filed: 1990-05-16
Abstract: The specification teaches an apparatus for selectively reinking an endless ribbon in that portion of the ribbon known as the ribbon print track.  The ribbon print track is created in an endless ribbon by the repeated striking of the ribbon by a print mechanism thereby deforming the ribbon and depleting it of ink.  Reinking the entire ribbon uses more ink than is necessary.  Reinking only the print track extends the life of the ribbon by selectively using the available supply of ink. The apparatus described herein achieves this result by use of an ink reservoir which supplies ink to a drive roller, which through a rotating pinching movement in cooperation with another roller, advances a ribbon into a stuffing cavity of an ink cartridge.  The ink reservoir is rotatably mounted and formed to apply ink only to that portion of the drive roller which corresponds to the print track of the ribbon.  The drive roller may be a composite of more than one roller in a stack of rollers and a single roller in the stack of rollers may receive the ink from the ink reservoir and transfer it to the ribbon print track.
Patent CA-2017507-A1 (CA)
Inventor: VAN NEST GARY
IPC: A61K47/48
Filed: 1990-05-24
Abstract: An adjuvant composition, comprising a metabolizable oil and an emulsifying agent, wherein the oil and the detergent are present in the form of an oil-in-water emulsion having oil droplets substantially all of which are less than 1 micron in diameter. In preferred embodiments, the emulsifying agent is also an immunostimulating agent, such as a lipophilic muramyl peptide. Alternatively, an immunostimulating agent separate from the emulsifying agent can be used.
Patent CA-2018452-A1 (CA)
Title: Adjustable tire recapping apparatus
Inventor: HILL GILBERT L
IPC: B29D30/54
Filed: 1990-06-07
Abstract: Abstract of the Invention A curing ring device for a precured tread rubber recapping apparatus of the type wherein a tire assembly with a  strip of tread rubber  in place  on a tire  carcass  is surrounded by a flexible envelope.   The curing ring device which seals the envelope around the tire in its bead area comprises an annular pressure ring that engages the envelope around the tire bead area and has a plurality of backup pads that engage the inside of the tire bead at spaced apart locations.  A single handle controls a linkage system that interconnects the pressure ring and the backup pads and closes them together so that sealing pressure is supplied by the ring against the envelope.  The linkage system includes elements enabling the distance between the pressure ring and the backup pads in their closed, clamping position to be adjusted so that tires with different bead thicknesses can be accommodated by the device.
Patent CA-2019102-A1 (CA)
Title: Fax machine
Inventor: TULI RAJA S
IPC: H04N1/195
Filed: 1990-06-15
Abstract: ABSTRACT     In a fax machine for transmitting and receiving wide images comprising  structure  for  scanning  the  image;  mirrors  for receiving and reflecting said scanned image; a charge couple device for receiving an image and producing a digitized signal; and a camera lens for receiving said scanned image reflected from said mirrors and focusing said scanned image onto said charge couple  device  so  as  to  produce  a  digitized signal  for transmission through said telephone wire.   The fax machine includes staggered thermal  printing heads for printing wide images.
Patent CA-2019448-A1 (CA)
IPC: H04M1/18
Filed: 1990-06-20
Abstract: TELEPHONE TERMINAL BASES          Abstract of the Invention A telephone terminal base having a front plate holding dialing buttons in a set and a barrier layer behind the plate to protect a printed circuit board from environmental conditions.  Ribs are provided on the front plate at each side of the set of buttons to seal against the barrier layer and screws disposed outwardly of the ribs from the set of buttons compress the barrier layer against the ribs to provide a sealing action.
Patent CA-2019896-A1 (CA)
IPC: H05B6/76
Filed: 1990-06-26
Abstract: A wave shielding structure for a microwave  oven is disclosed. The structure comprises: a seal plate integrally formed with a slit, and having a bent surface, with a front plate and dual metals being contacted to the bent surface in order to obtain a first shielding effect; a turning post having a certain period based on a TE mode for obtaining a second shielding effect; a choke seal disposed within the damping groove for obtaining a third shielding effect; and a capacitive seal formed by contacting metals onto the bent surface of the door frame for obtaining a fourth shielding effect. According to the present invention, the wave shielding capability becomes superior the appearance of the door becomes aesthetically nice, and the asembling of the door becomes convenient.
Patent CA-2021927-A1 (CA)
Title: Polymer clad optical fiber
Inventor: HONJO MAKOTO
IPC: G02B6/02
Filed: 1990-07-25
Abstract: ABSTRACT The present invention is directed to a polymer clad optical fiber comprising a core made of quartz glass or optical glass, a cladding made of a cured material of a polymer composition comprising a ladder type polymethylsiloxane, a linear polymethylsiloxane having hydroxyl groups and optionally a solvent.  The fiber may optionally have a protecting layer made of a polymer material comprising a ladder type polysiloxane having phenyl side groups.  The fiber of the invention has low light transmission loss and good mechanical strength.
Patent CA-2021994-A1 (CA)
Inventor: BOURK TERRANCE R
IPC: H04R1/10
Filed: 1990-07-26
Abstract: A headset for acoustic reproduction of an electronic signal which electronic signal is representative of the summation of a desired audio signal and an anti-noise signal.          The headset includes a headband, an earcup mounted to the headband, a driver mounted within the earcup which receives and acoustically reproduces the electronic signal, a directional microphone which detects and transduces the acoustical pressure within the earcup cavity, means for generating the anti-noise signal from the microphone signal, and a positioning member for mounting the microphone to the earcup in a position so that the microphone is acoustically coupled to the driver.  The microphone is oriented so that its vented or open face is pointing towards the driver.  If the driver is provided with an inner dome portion and an outer annulus portion the microphone is positioned by its attachment to a grille plate extending across the driver, the microphone being mounted to the grille plate on a side opposite the driver.  The grille plate includes a plurality of apertures, at least one of which is positioned proximate the center of the driver with the microphone mounted across that aperture so that the microphone is acoustically coupled to the dome portion and acoustically isolated from the outer annulus portion.
Patent CA-2023729-A1 (CA)
Title: Method for separating carbon-14 from particulate ion-exchange resins
Inventor: CHANG FRANCIS H
IPC: C01B32/50
Filed: 1990-08-21
Abstract: ABSTRACT           Carbon-14 (C-14) is separated from ion exchange resin particles by forming a slurry of the loaded resin particles in an aqueous acidic solution which decomposes carbon compounds to yield carbon dioxide.  A non-reactive gas is bubbled through the slurry, having a content of carbon dioxide sufficiently low that carbon dioxide transfers from the solution into the bubbles.  The slurry is agitated sufficiently to drive the resin particles bodily through the slurry and to dislodge any gas films from the surfaces of the particles so that substantially no gas film or bubble visible to the eye builds up on the particles.  The carbon dioxide laden gas evolving as bubbles from the slurry is collected and passed in contact with a carbon dioxide absorbent.  The absorbent having the carbon dioxide absorbed thereby is then collected. This method achieves consistently high recoveries of C-14, and can be carried out on a large scale, using relatively simple apparatus.
Patent CA-2024284-A1 (CA)
Title: Carbonylation of methanol using a novel transition metal catalyst precursor
Inventor: CAVELL RONALD G
IPC: C07C69/14
Filed: 1990-08-30
Abstract: "CARBONYLATION OF METHANOL USING A NOVEL TRANSITION METAL CATALYST PRECURSOR" An improved process is provided for the carbonylation of methanol to acetic acid and/or its derivatives, especially methyl acetate, under mild reaction conditions using a novel catalyst precursor. The precursor is a transition metal complex having a heterodifunctional phosphorus - nitrogen chelated ligand attached to the metal. The carbonylation reaction can now typically be carried out at 80.degree.C and CO pressure of 40 psig.
Patent CA-2024923-A1 (CA)
Title: Microwave radiation absorbing adhesive
Inventor: BOYER CHARLES E III
IPC: H01B1/22
Filed: 1990-09-07
Abstract: F.N. 44013 CAN 6A         MICROWAVE RADIATION ABSORBING ADHESIVE                  Abstract of the Disclosure A microwave radiation absorbing adhesive comprises dissipative particles bound in a thermoplastic or thermosetting adhesive.  The absorbing adhesive may be applied directly to the surface of any object, or to an irregularly shaped object, or into cracks or crevices in or between objects, including conventional absorbers.  Several types of dissipative particles and adhesives may be used.     PFAPP9.15  (7)
Patent CA-2025595-A1 (CA)
Title: Low temperature catalysts for oxidative coupling processes
Inventor: CAMPBELL KENNETH D
IPC: B01J27/08
Filed: 1990-09-18
Abstract: LOW TEMPERATURE CATALYSTS FOR  OXIDATIVE COUPLING PROCESSES            Abstract of the Disclosure Oxidative coupling of lower alkane to higher hydrocarbon is conducted using supported catalyst comprising an activity promoting amount of at least one cobalt, nickel or rhodium compound and at least one catalytically active Group IA and Group IIA metal compound in the presence of a halogen-containing component.
Patent CA-2027293-A1 (CA)
Inventor: BUROV JURY M
IPC: C01B32/949
Filed: 1990-10-10
Abstract: METHOD FOR OBTAINING A POWDERED REFRACTORY MATERIAL AND A REACTOR FOR CARRYING OUT THE           METHOD           Abstract The method includes thermal treatment through combus-tion of a heat liberating mixture, and application to so-lid products of combustion resulting from the treatment of external forces in a direction tangent and/or normal to their surface at a temperature near to or below the tem-perature of combustion to 0.5 their melting point accompa-nied by evacuation of the powdered refractory material thus produced.  The reactor comprises a casing having a re-action cavity, the casing accommodating means for feeding the heat liberating mixture under pressure thereto, and a rotor having an insert, this means and rotor communication with the cavity.  The outer surface of the insert defines with the inner surface of the casing an annular clearance facilitating evacuation of the powdered refractory material.
Patent CA-2029780-A1 (CA)
Title: Staggered diffuser arrangement for waste water treatment systems
Inventor: THARP CHARLES E
IPC: B01F3/04
Filed: 1990-11-13
Abstract: Abstract of the Disclosure A waste water aeration system in which tubular diffusers are ar-ranged with short and long diffuser assemblies (28, 30) alternating along the length of each air lateral (22) submerged in the treatment basin (10).  This arrangement provides application of air which is widely distributed in the basin (10) and decreases the upward water velocity to increase the air bubble residence time for enhanced oxygen transfer efficiency. When plural air laterals (22) are used, each long diffuser assembly (28) is axially aligned with a short diffuser assembly (30) on the adjacent air lateral (22).  Each long diffuser (28) can either be constructed to discharge air along its entire length or it can include an imperforate pipe section which occupies one half of the diffuser length adjacent to the air lat-eral (22).
Patent CA-2031466-A1 (CA)
Title: Polypropylene film and process for making same
Inventor: CHU SHAW C
IPC: D01F6/06
Filed: 1990-12-04
Abstract: ABSTRACT POLYPROPYLENE FILM AND PROCESS FOR MAKING SAME A thermoplastic film structure comprising a base portion of a thermoplastic resin which comprises polypropylene and a coating portion of an alkali metal salt of an alkyl sulfate is disclosed. The film is characterised by improved anti-blocking characteristics without the attendant problems associated with decreased clarity, adhesion and wettability common to films treated to improve their anti-blocking characteristics. The invention also provides a process for making the film structure in which the polypropylene-containing thermoplastic resin is extruded into a sheet; the sheet oriented in the longitudinal direction to form a monoaxially oriented film; the film coated with the alkali metal salt of an alkyl sulfate; and the coated film oriented in the transverse direction.
Patent CA-2033447-A1 (CA)
Inventor: DEZIEL ROBERT
IPC: A61K8/60
Filed: 1990-12-31
Abstract: Disclosed herein is a combination of an antiviral nucleoside analog and a ribonucleotide reductase inhibiting peptide derivative. The combination is useful far treating herpes infections.
Patent CA-2033552-A1 (CA)
Title: Refuse receptacle
Inventor: BAILEY DARYL K
IPC: B65F1/06
Filed: 1991-01-03
Abstract: ABSTRACT OF THE DISCLOSURE A receptacle holds a wide range of refuse bags in an open state and also functions as a footstool. The receptacle has an inner container that receives the bag, An upper part of the bag is folded over El resilient upper shoulder of the inner container. An outer container receives the inner containerthrough an open bottom and has an upper opening to permit trash to be deposited into the bag. An internal portion of the outer container has an inclined camming surface and a vertical cylindrical surface that deflect and retain the shoulder to grip the bag thereby maintaining the bag in an open state. A cap fits over the opening of the outer container and provides a flat surface for standing. The cap and sidewall are structured to withstand an axial load of at least 300 pounds, A lower flange on the inner container seats against a horizontal floor surface and also seats the outer container contemporaneously with the gripping of the bag. The bag is properly retained while the receptacle is used as a footstool, and particularly on carpeted surfaces.
Patent CA-2038537-A1 (CA)
Title: Power assisted dezincing of galvanized steel
Inventor: LEROY RODNEY L
IPC: C25F5/00
Filed: 1991-03-18
Abstract: A method of removing zinc from galvanized steel, comprises  immersing  the  galvanized  steel  in  a  caustic electrolyte solution, electrically connecting the steel to the positive terminals of a source of direct current, and electrically  connecting  the  negative  terminals  of  the current source to a cathode material which is stable in caustic electrolyte and has a low hydrogen overvoltage.
Patent CA-2041281-A1 (CA)
Title: Method for detecting registration errors
Inventor: BLASIUS UDO
IPC: B65H23/032
Filed: 1991-04-26
Abstract: Heidelberger Druckmaschinen AG            Summary In a procedure for detecting registration errors on a printed product provided with register  marks, in which the  register  marks  undergo  opto-electrical  scanning when the printed product passes through the printing machine, the register marks are scanned by sensors with at least four sensor elements which are for the most part arranged in a square. The register marks each have two edges running diagonally in relation to the web and at opposed angles.
Patent CA-2042151-A1 (CA)
Inventor: SLACK RAY
IPC: B09B5/00
Filed: 1991-05-09
Abstract: ABSTRACT     An apparatus for dismembering used cartridge filters, the cartridge filters having a top and bottom, the top including a baseplate having an outlet  and at  least  one inlet,  the baseplate being adapted to mount with a machine, the filter including a casing extending from proximate the top to the bottom of the cartridge filter and affixed to the baseplate proximate the top of the cartridge filter, the cartridge filter including a disposable filter media included inside the casing; the apparatus comprising means for receiving waste cartridge  filters,  means  for  delivering the filters to a predetermined position, means for holding the filter at the predetermined position, means for separating the baseplate and the canister, means for removing the canister from the remnant of the   filter and segregating said canister,   means  for separating said baseplate from the remnant of said  filter and segregating  said  baseplate,  said  remnant  including  said disposable filter media,   means for handling said remnant and segregating said remnant, means for collecting and segregating any  waste  filtrate,  such  as  oil,  in  the  apparatus  and segregating said filtrate, whereby waste cartridge filters are dismembered by  said  apparatus  and the  components  thereof segregated for recycling purposes.
Patent CA-2042462-A1 (CA)
Title: Seat suspension system
Inventor: BATES MICHAEL E
IPC: B60N2/54
Filed: 1991-05-15
Abstract: ABSTRACT OF THE DISCLOSURE            A seat  suspension system  includes  a  pair  of  springs effective to cause two pairs of pivoted arms to adjust the height of the system dependent on a load carried by a seat supported by the system.  A motor is effective to adjust  the force exerted by the springs so as  to cause  the  system  to  move  towards  a  predetermined mid-travel position.
Patent CA-2044402-A1 (CA)
Title: Thermal ink jet printhead and method of manufacture
Inventor: ELHATEM ABDUL M
IPC: B41J2/16
Filed: 1991-06-12
Abstract: ABSTRACT A thermal inkjet printhead is disclosed having improved reliability and thermal efficiency. The printhead includes heating resistors and thin protective regionspositioned above the heating resistors for protecting the heating resistors fromcorrosion and cavitation damage from the ink. The heating resistors are positioned substantially within the geometric confines of the portion of the protective regions exposed to the ink. Positioned between the heating resistors and the underlying printhead structure are field oxide regions that thermally insulate the heating resistors from the underlying printhead structure. Positioned between the heating resistors and the underlying printhead structure is a passivation layer consisting of a middle layer of phosphorous glass, an underglaze between the middle layer and the underlying printhead structure, and glass mesas between the middle layer and theheating resistors. The underglaze helps prevent phosphorus from the middle layerfrom contaminating the underlying printhead structure. Similarly, the glass mesas prevent phosphorus from the middle layer from contaminating the heating resistors.
Patent CA-2044953-A1 (CA)
Title: Surfactant ion pair fluorescent whitener composition
Inventor: PETRIN MICHAEL
IPC: C11D3/42
Filed: 1991-06-19
Abstract: Optical brighteners (fluorescent whitener agents) can be made hypochlorite bleach resistant, stable and formulated into concentrated aqueous hypochlorite solutions and into detergent compositions in a manner whereby the whitener agent is transformed into a neutral ion-pair with a surface active quaternary ammonium ion-producing compound.